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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.